Question

Each letter of the alphabet is written on a different piece of paper. These pieces of paper are folded and kept in a bag. One folded paper is drawn at random from this bag.

What is the probability of drawing a p or a vowel in the word palindrome? Hint: Determine if events happen at the same time.
a. 5/6
b.5/13
c.1/2
d.3/13

Answer 1

PALINDROME

only 1 P ; 4 vowels ; 10 letters in all

probability of p = 1/10
probability of vowels = 4/10

probability of P or vowels = 1/10 + 4/10 = 510 or 1/2

these probabilities are mutually exclusive events... this is because these events can't happen at the same time.